I would like a two panel window so i can look at two archives side by side which would make it easier to update and keep them in check as you say

I would love this, especially when opening an archive from within another one. I do have ‘reuse windows’ UNchecked, but have never been able to get a 2nd instance to open. All I can do is Ctrl+L IIRC to go back to the parent archive.

I know my ‘wish’ is not the same as yours, but I think it is close enough not to be OT ;).